A new energy power battery cooling device

Abstract

The present application provides a new energy power battery heat dissipation device, which belongs to the field of battery heat dissipation technology. This new energy power battery heat dissipation device includes a battery pack and a heat sink. The heat sink includes a box body, a serpentine pipe, a first water tank, a second water tank and a box cover. The battery pack, the serpentine pipe, the first solenoid valve and the second temperature switch are electrically connected. The first water tank and the second water tank are connected, and the first water tank and the second water tank are provided with a second solenoid valve at the connected position. The upper surface of the second water tank is provided with a waterproof and breathable membrane, and the through hole is provided corresponding to the waterproof and breathable membrane. Through the design of this device, the heat dissipation of the power battery is realized as a whole, and the conventional air blast heat dissipation design is optimized. The overall design enables it to mechanically and automatically flexibly dissipate the heat of the power battery, and the overall design makes the heat dissipation effect better.

Description

Technical Field

[0001] The present application relates to the field of battery heat dissipation technology, and more specifically, to a new energy power battery heat dissipation device. Background Art

[0002] At present, power batteries are the power sources that provide power for tools. As one of the core components of new energy vehicles, the battery pack of new energy vehicles is responsible for providing power for new energy vehicles. Since the battery pack of new energy vehicles is assembled through multiple battery units and arranged relatively densely, the heat emitted during use is gathered together. If the heat cannot be discharged in time, it will not only affect the life of the battery pack, but also cause fire and explosion in serious cases. However, conventional battery pack heat dissipation is usually achieved through a single air blast, and the heat dissipation effect is poor. Summary of the invention

[0003] In order to make up for the above shortcomings, the present application provides a new energy power battery heat dissipation device, which aims to improve the problem that conventional battery pack heat dissipation is usually performed through a single air blower, resulting in poor heat dissipation effect.

[0004] An embodiment of the present application provides a new energy power battery heat dissipation device, including a battery pack and a heat dissipation element.

[0005] The heat sink comprises a box body, a serpentine pipe, a first water tank, a second water tank and a box cover, the battery pack, the serpentine pipe, the first water tank and the second water tank are all arranged in the box body, the box cover is snapped on the upper surface of the box body, and the box cover is fixed to the box body with bolts, a through hole is opened on the upper surface of the box cover, the serpentine pipe is connected between the first water tank and the second water tank, and a first solenoid valve is arranged outside the serpentine pipe near the first water tank, a second temperature switch is arranged on the top surface of the box cover, the first solenoid valve is electrically connected to the second temperature switch, the first water tank and the second water tank are connected, and the first water tank and the second water tank are arranged at the connecting position, the first temperature switch is arranged on the upper surface of the second water tank, one end of the first temperature switch passes through the upper surface of the second water tank and extends to the inside, and the first temperature switch is electrically connected to the second solenoid valve, a waterproof and breathable membrane is arranged on the upper surface of the second water tank, and the through hole is arranged corresponding to the waterproof and breathable membrane.

[0006] In the above implementation process, the through hole can be used for normal and continuous heat dissipation of the device. When the second temperature switch monitors that the internal temperature of the device is lower than the set value, the first solenoid valve is automatically started, and the liquid in the first water tank is cooled and dissipated for the inside of the device and the periphery of the battery pack through the serpentine tube and the first solenoid valve. The serpentine tube design increases the cooling time and area of ​​the liquid, so that the cooling and heat dissipation effect on the battery pack is better. After a certain period of time, the liquid flows into the second water tank. At this time, when the first temperature switch monitors that the temperature in the second water tank is higher than the set value, the second solenoid valve is automatically closed, and the liquid cannot enter the second water tank. In a water tank, the second water tank and the liquid in the second water tank are continuously cooled and dissipated through a waterproof breathable membrane and a through hole. After a certain period of time, when the first temperature switch detects that the temperature in the second water tank is lower than the set value, that is, the temperature of the liquid in the second water tank drops, the second solenoid valve is automatically opened, and the liquid enters the first water tank, waiting for the second temperature switch to trigger the first solenoid valve for heat dissipation at any time. Through the design of this device, the heat dissipation of the power battery is realized as a whole, and the conventional air blast heat dissipation design is optimized. The overall design enables it to mechanically and automatically dissipate the heat of the power battery flexibly, and the overall design makes the heat dissipation effect better.

[0007] In a specific implementation, the upper surface of the box body is symmetrically provided with card slots, and the inner top surface of the box cover is symmetrically fixedly connected with card columns, and the card columns are card-engaged in the card slots.

[0008] In the above implementation process, the box cover is designed to be clamped on the upper surface of the box body by the design that the clamping column is clamped in the clamping groove, so that it is convenient for quick and accurate alignment during installation.

[0009] In a specific implementation, a first heat dissipation port is provided on the side wall of the box body, and the first heat dissipation port is arranged corresponding to the second water tank.

[0010] In the above implementation process, by designing the first heat dissipation port and the second water tank to be arranged correspondingly, the heat of the hot water in the second water tank can be discharged through the first heat dissipation port, thereby improving its cooling speed.

[0011] In a specific embodiment, the first temperature switch is fixedly connected to the upper surface of the second water tank, and the second temperature switch is fixedly connected to the inner top surface of the tank cover.

[0012] In the above implementation process, the first temperature switch and the second temperature switch are fixedly connected to prevent the first temperature switch and the second temperature switch from falling off after being used for a certain period of time, thereby affecting their use.

[0013] In a specific implementation, the upper surface of the box body is symmetrically provided with mounting grooves, the inner top surface of the box cover is symmetrically fixedly connected with a mounting block, the mounting block is located in the mounting grooves, and the bolts penetrate the box body, the mounting grooves and the mounting block respectively.

[0014] In the above implementation process, the design that the mounting block is located in the mounting groove makes it easy to fix the box body and the box cover with bolts, and the bolt fixation makes it easy to install and disassemble later.

[0015] In a specific implementation, a notch is opened on one side of the box body, a cooling fan is arranged in the notch, and an air outlet end of the cooling fan is arranged corresponding to the side wall of the battery pack.

[0016] In the above implementation process, the cooling fan outlet is designed to correspond to the side wall of the battery pack, so that the cooling fan can be used to dissipate the heat of the battery pack on a daily basis, thereby alleviating the continuous increase in temperature.

[0017] In a specific implementation manner, a mounting frame is fixedly connected to the outer wall of the heat dissipation fan, and the outer wall of the mounting frame is fixedly connected to the inner wall of the notch.

[0018] In the above implementation process, the cooling fan is fixed by the mounting frame, and the space occupied by the mounting frame and the cooling fan is reduced by the design of fixed connection between the outer wall of the mounting frame and the inner wall of the notch.

[0019] In a specific implementation, one side of the second water tank is connected to a support pipe, one end of the support pipe is connected to the first water tank, and the second solenoid valve is arranged outside the support pipe.

[0020] In the above implementation process, the switch of the supporting pipe is controlled by the second solenoid valve, water starts from the first water tank, and the battery pack is cooled by the first solenoid valve and the serpentine pipe. The water cooling area is increased and the cooling efficiency is improved through the design of the serpentine pipe. The water is sent to the second water tank. When the temperature in the second water tank is too high as monitored by the first temperature switch, the second solenoid valve is automatically closed to allow the water to be cooled in the second water tank. When the temperature in the second water tank is lower than the set value as monitored by the first temperature switch, the second solenoid valve is automatically opened, and the water enters the first water tank, ready to dissipate heat to the battery pack at any time.

[0021] In a specific embodiment, a second heat dissipation port is provided on the upper surface of the second water tank, and the waterproof breathable membrane is located in the second heat dissipation port.

[0022] In the above implementation process, the second heat dissipation port is designed to facilitate the installation of a waterproof breathable membrane. The design of the waterproof breathable membrane improves the cooling speed of the water in the second water tank and prevents water from spilling out of the second water tank.

[0023] In a specific embodiment, ventilation holes are symmetrically provided on the upper surface of the box cover, and the ventilation holes are arranged corresponding to the battery pack.

[0024] In the above implementation process, through the design of ventilation holes and the use of a heat-dissipating fan, the overall design increases the air flow rate inside the box, thereby improving the heat dissipation efficiency of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of a top-view cross-sectional structure provided by an embodiment of the present application;

[0027] Figure 2 A schematic diagram of the bottom view of the box cover provided in the embodiment of the present application;

[0028] Figure 3 A schematic diagram of an enlarged top view of the second water tank provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of a side view structure provided for an embodiment of the present application;

[0030] Figure 5 This is a schematic diagram of the front, cross-sectional and side views of the serpentine tube provided in an embodiment of the present application.

[0031] In the figure: 100-battery pack; 200-heat sink; 210-box; 211-card slot; 212-first heat exhaust port; 213-mounting slot; 214-gap; 2141-cooling fan; 2142-mounting frame; 220-serpentine pipe; 221-first solenoid valve; 230-first water tank; 240-second water tank; 241-supporting pipe; 242-second solenoid valve; 243-first temperature switch; 244-second heat exhaust port; 245-waterproof breathable membrane; 250-box cover; 251-card column; 252-mounting block; 253-ventilation hole; 254-second temperature switch; 255-through hole. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0033] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] See also Figure 1 The present application provides a new energy power battery heat dissipation device, including a battery pack 100 and a heat dissipation element 200.

[0041] The heat dissipation and cooling of the battery pack 100 are achieved through the heat dissipation element 200 .

[0042] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The heat sink 200 includes a box body 210, a serpentine tube 220, a first water tank 230, a second water tank 240 and a box cover 250. The battery pack 100, the serpentine tube 220, the first water tank 230 and the second water tank 240 are all arranged in the box body 210. The box cover 250 is clamped on the upper surface of the box body 210. The upper surface of the box body 210 is symmetrically provided with clamping grooves 211. The top surface of the box cover 250 is symmetrically fixedly connected with clamping columns 251. The clamping columns 251 are clamped in the clamping grooves 211. The box cover 250 is clamped on the box body 210 by the design that the clamping columns 251 are clamped in the clamping grooves 211. The surface design makes it easy to align quickly and accurately during installation, and the box cover 250 is fixed to the box body 210 with bolts. The upper surface of the box body 210 is symmetrically provided with mounting grooves 213, and the top surface of the box cover 250 is symmetrically fixed with mounting blocks 252. The mounting blocks 252 are located in the mounting grooves 213, and bolts pass through the box body 210, the mounting grooves 213 and the mounting blocks 252 respectively. The design that the mounting blocks 252 are located in the mounting grooves 213 makes it easy to fix the box body 210 and the box cover 250 with bolts, and the bolt fixation makes it easy to install and disassemble later.

[0043] In the present application document, a through hole 255 is provided on the upper surface of the box cover 250, the serpentine pipe 220 is connected between the first water tank 230 and the second water tank 240, and a first solenoid valve 221 is provided outside the serpentine pipe 220 near the first water tank 230, a second temperature switch 254 is provided on the top surface of the box cover 250, the first solenoid valve 221 is electrically connected to the second temperature switch 254, and the switch of the first solenoid valve 221 is controlled by the second temperature switch 254, the first water tank 230 and the second water tank 240 are connected, and the first water tank 230 and the second water tank 240 are located at the connecting position. A bearing pipe 241 is connected to one side of the second water tank 240, one end of the bearing pipe 241 is connected to the first water tank 230, and the second solenoid valve 2 42 is arranged outside the supporting pipe 241, and the switch of the supporting pipe 241 is controlled by the second solenoid valve 242. Water starts from the first water tank 230, and the battery pack 100 is cooled by the first solenoid valve 221 and the serpentine pipe 220. The design of the serpentine pipe 220 increases the water cooling area and improves the cooling efficiency. The water is sent into the second water tank 240. When the temperature in the second water tank 240 is too high as monitored by the first temperature switch 243, the second solenoid valve 242 is automatically closed to allow the water to be cooled in the second water tank 240. When the temperature in the second water tank 240 is lower than the set value as monitored by the first temperature switch 243, the second solenoid valve 242 is automatically opened, and the water enters the first water tank 230, ready to dissipate heat for the battery pack 100 at any time.

[0044] In the specific setting, a first temperature switch 243 is provided on the upper surface of the second water tank 240, one end of the first temperature switch 243 passes through the upper surface of the second water tank 240 and extends to the inside, the first temperature switch 243 is fixedly connected to the upper surface of the second water tank 240, and the second temperature switch 254 is fixedly connected to the inner top surface of the tank cover 250. The first temperature switch 243 and the second temperature switch 254 are both fixedly connected to avoid the first temperature switch 243 and the second temperature switch 254 falling off after a certain period of use, thereby affecting their use, and the first temperature switch 243 and the second solenoid valve 242 are electrically connected. Through the electrical connection design, the switch of the second solenoid valve 242 is controlled by the first temperature switch 243.

[0045] It should be noted that a waterproof breathable membrane 245 is provided on the upper surface of the second water tank 240, and a second heat dissipation port 244 is provided on the upper surface of the second water tank 240. The waterproof breathable membrane 245 is located in the second heat dissipation port 244. The design of the second heat dissipation port 244 facilitates the installation of the waterproof breathable membrane 245. The design of the waterproof breathable membrane 245 improves the cooling speed of the water in the second water tank 240, and prevents water from spilling out of the second water tank 240. The through hole 255 is provided corresponding to the waterproof breathable membrane 245. The side wall of the box body 210 is provided with a first heat dissipation port 212, and the first heat dissipation port 212 is provided corresponding to the second water tank 240. The design of the first heat dissipation port 212 corresponding to the second water tank 240 allows the heat of the hot water in the second water tank 240 to be discharged through the first heat dissipation port 212, thereby improving its cooling speed.

[0046] In this embodiment, a notch 214 is provided on one side of the box body 210, and a cooling fan 2141 is provided in the notch 214. The air outlet of the cooling fan 2141 is provided corresponding to the side wall of the battery pack 100. By designing that the air outlet of the cooling fan 2141 is provided corresponding to the side wall of the battery pack 100, the cooling fan 2141 can be used to dissipate heat from the battery pack 100 on a daily basis, which can alleviate the continuous increase in temperature. The outer wall of the cooling fan 2141 is fixedly connected to a mounting frame 2142, and the outer wall of the mounting frame 2142 is fixed to the inner wall of the notch 214. The cooling fan 2141 is fixed by the mounting bracket 2142, and the outer wall of the mounting bracket 2142 is fixedly connected to the inner wall of the notch 214, so that the space occupied by the mounting bracket 2142 and the cooling fan 2141 is reduced. The upper surface of the box cover 250 is symmetrically provided with ventilation holes 253, and the ventilation holes 253 are arranged corresponding to the battery pack 100. Through the design of the ventilation holes 253 and the cooling fan 2141, the overall design increases the air flow rate inside the box body 210, thereby improving the heat dissipation efficiency of the battery pack 100.

[0047] Specifically, the working principle of the new energy power battery heat dissipation device is as follows: when in use, the heat dissipation fan 2141 and the ventilation hole 253 are used to dissipate heat for the battery pack 100. During continuous use, when the second temperature switch 254 detects that the internal temperature of the device is lower than the set value, the first solenoid valve 221 is automatically started, and the liquid in the first water tank 230 is cooled and dissipated for the inside of the device and the periphery of the battery pack 100 through the serpentine tube 220 and the first solenoid valve 221. The design of the serpentine tube 220 increases the cooling time and area of ​​the liquid, so that the cooling and heat dissipation effect on the battery pack 100 is better. After a certain period of time, the liquid flows into the second water tank 240. At this time, when the first temperature switch 243 detects that the temperature in the second water tank 240 is higher than the set value, the first solenoid valve 221 is automatically started. The second solenoid valve 242 is automatically closed, and the liquid cannot enter the first water tank 230. The second water tank 240 and the liquid in the second water tank 240 are continuously cooled and cooled through the first heat dissipation port 212, the second heat dissipation port 244, the waterproof breathable membrane 245 and the through hole 255. After a certain period of time, when the first temperature switch 243 detects that the temperature in the second water tank 240 is lower than the set value, the second solenoid valve 242 is automatically opened, and the liquid enters the first water tank 230, waiting for the second temperature switch 254 to trigger the first solenoid valve 221 for heat dissipation at any time. Through the design of this device, the heat dissipation of the power battery is realized as a whole, and the conventional design of air blast heat dissipation is optimized. The overall design enables it to mechanically and automatically flexibly dissipate the heat of the power battery, and the overall design makes the heat dissipation effect better.

[0048] It should be noted that the specific models and specifications of the battery pack 100, the cooling fan 2141, the first solenoid valve 221, the second solenoid valve 242, the first temperature switch 243 and the second temperature switch 254 need to be selected and determined based on the actual specifications of the device, etc. The specific selection and calculation method adopts the existing technology in the field, so it will not be described in detail.

[0049] The power supply and principles of the battery pack 100, the cooling fan 2141, the first solenoid valve 221, the second solenoid valve 242, the first temperature switch 243 and the second temperature switch 254 are clear to those skilled in the art and will not be described in detail herein.

[0050] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0051] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A new energy power battery heat dissipation device, characterized in that: include Battery(100); A heat sink (200), the heat sink (200) comprising a box body (210), a serpentine tube (220), a first water tank (230), a second water tank (240) and a box cover (250); the battery pack (100), the serpentine tube (220), the first water tank (230) and the second water tank (240) are all arranged in the box body (210); the box cover (250) is snap-connected to the upper surface of the box body (210), and the box cover (250) is fixed to the box body (210) by bolts; a through hole (255) is provided on the upper surface of the box cover (250); the serpentine tube (220) is connected between the first water tank (230) and the second water tank (240), and a first solenoid valve (221) is provided outside the serpentine tube (220) at a position close to the first water tank (230); A second temperature switch (254) is provided on the inner top surface of the tank cover (250), the first solenoid valve (221) is electrically connected to the second temperature switch (254), the first water tank (230) and the second water tank (240) are in communication, and a second solenoid valve (242) is provided at a communication position between the first water tank (230) and the second water tank (240), a first temperature switch (243) is provided on the upper surface of the second water tank (240), one end of the first temperature switch (243) passes through the upper surface of the second water tank (240) and extends to the inside, and the first temperature switch (243) and the second solenoid valve (242) are electrically connected, a waterproof and breathable membrane (245) is provided on the upper surface of the second water tank (240), and the through hole (255) is provided corresponding to the waterproof and breathable membrane (245); When in use, when the second temperature switch (254) detects that the internal temperature of the device is lower than a set value, the first solenoid valve (221) is automatically activated, and the liquid in the first water tank (230) cools the inside of the device and the periphery of the battery pack (100) through the serpentine tube (220) and the first solenoid valve (221), and the liquid flows into the second water tank (240). When the first temperature switch (243) detects that the temperature in the second water tank (240) is higher than a set value, the second solenoid valve (242) is automatically closed. ), liquid cannot enter the first water tank (230), the second water tank (240) and the liquid in the second water tank (240) are continuously cooled and cooled through the waterproof breathable membrane (245) and the through hole (255), and when the first temperature switch (243) detects that the temperature in the second water tank (240) is lower than a set value, the second solenoid valve (242) is automatically opened, and the liquid enters the first water tank (230), waiting for the second temperature switch (254) to trigger the first solenoid valve (221) for heat dissipation at any time.

2. A new energy power battery heat dissipation device according to claim 1, characterized in that: The upper surface of the box body (210) is symmetrically provided with a clamping slot (211), and the inner top surface of the box cover (250) is symmetrically fixedly connected with a clamping column (251), and the clamping column (251) is clamped in the clamping slot (211).

3. A new energy power battery heat dissipation device according to claim 1, characterized in that: The side wall of the box body (210) is provided with a first heat dissipation port (212), and the first heat dissipation port (212) is arranged corresponding to the second water tank (240).

4. A new energy power battery heat dissipation device according to claim 1, characterized in that: The first temperature switch (243) is fixedly connected to the upper surface of the second water tank (240), and the second temperature switch (254) is also fixedly connected to the inner top surface of the tank cover (250).

5. The new energy power battery heat dissipation device according to claim 1, characterized in that: The upper surface of the box body (210) is symmetrically provided with mounting grooves (213); the inner top surface of the box cover (250) is symmetrically fixedly connected with a mounting block (252); the mounting block (252) is located in the mounting groove (213); and the bolts respectively penetrate the box body (210), the mounting groove (213) and the mounting block (252).

6. A new energy power battery heat dissipation device according to claim 1, characterized in that: A notch (214) is provided on one side of the box body (210), a cooling fan (2141) is arranged in the notch (214), and an air outlet end of the cooling fan (2141) is arranged corresponding to a side wall of the battery pack (100).

7. A new energy power battery heat dissipation device according to claim 6, characterized in that: The outer wall of the heat dissipation fan (2141) is fixedly connected to a mounting frame (2142), and the outer wall of the mounting frame (2142) is fixedly connected to the inner wall of the notch (214).

8. The new energy power battery heat dissipation device according to claim 1, characterized in that: One side of the second water tank (240) is connected to a support pipe (241), one end of the support pipe (241) is connected to the first water tank (230), and the second solenoid valve (242) is arranged outside the support pipe (241).

9. A new energy power battery heat dissipation device according to claim 1, characterized in that: A second heat dissipation port (244) is provided on the upper surface of the second water tank (240), and the waterproof breathable membrane (245) is located inside the second heat dissipation port (244).

10. A new energy power battery heat dissipation device according to claim 1, characterized in that: The upper surface of the box cover (250) is symmetrically provided with ventilation holes (253), and the ventilation holes (253) are arranged corresponding to the battery pack (100).

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